The term PMLD (Profound and Multiple Learning Difficulties) is used here to cover that group of people who have more than one severe disability. Due to the complexity of their needs it is often difficult to assess their abilities and to find a way of communication.

The Benefits

Computers can provide stimulating resources and materials. Bright and dynamic screen displays can attract and hold attention. The addition of sound and speech feedback can exploit the other senses. The range of alternative input devices can offer opportunities for control for those with severe physical disabilities.

Helping the individual

Exploring and choosing the range of resources for an individual can be difficult. In many cases this requires an assessment process which will involve those who are familiar with the individual, a knowledge of the available technology and suitable experience. In some instances, it may be necessary to call on help from a specialist organisation. Contact details of assessment centres are available on the Communication Matters website.

Software 

While only a limited amount of software is written specially for the PMLD group, much early learning and switch operated material can be used. Software titles such as those included in the Big Bang series that offer bright and attractive images and sounds are recommended

Input methods 

It is very unlikely that someone with PMLD will be able to use the standard keyboard or mouse but will need a device that is appropriate to the physical and cognitive needs. As they are likely to have very restricted movements it will be necessary to choose a device that they can work, find some way of positioning it and provide time for them to learn how to use it. A button switch device such as a Buddy Button, available in different sizes, may be the most appropriate access device when used in conjunction with a switch interface box such as the Inclusive Simple Switch Box. 

Computer output 

The standard computer output is provided by the monitor and sound system. The impact of the visual output may need to be enhanced by using the computer in a darkened room, using a larger monitor, a digital projector or even simply turning the brightness control up. Sound output can be enhanced by using a better and more powerful amplifier system. The impact of the sound and visual output can be enhanced by placing the speakers close to the monitor and by ensuring that the user is placed to make effective use of their vision.

Using other devices

Electrical and battery-operated equipment is widely used with PMLD learners. This type of equipment can often be more exciting and fun to use than a computer. By using adaptor leads such as the Battery Switch Adaptor and mains controllers such as the Inclusive Click-On 2 the same switches used with a computer can also be used to control battery operated or mains powered devices.

Linked Products

• Buddy Button
• Inclusive Simple Switch Box
• Battery Switch Adaptors